What are pleural effusion and empyema?
The pleural space is the thin gap between the lung and the chest wall. A pleural effusion is fluid collecting in it; an empyema is infected fluid — pus. Either compresses the lung, and the symptoms are breathlessness, chest pain and, with infection, fever and weight loss.
Treatment escalates with the stage. Simple effusions are aspirated or drained with a tube. Empyema that has begun to loculate may respond to a drain plus fibrinolytics. An organized, chronic empyema has a thick fibrous peel over the lung that has to be peeled away surgically — a decortication — to let the lung re-expand. In this region, tuberculosis is a leading cause of exactly this picture.
Assessed before any treatment is recommended.